(19)
(11) EP 1 242 308 A1

(12)

(43) Date of publication:
25.09.2002 Bulletin 2002/39

(21) Application number: 00986107.1

(22) Date of filing: 29.11.2000
(51) International Patent Classification (IPC)7C01B 33/149, D21H 21/10, D21H 17/68, D21H 23/14, C02F 1/52
// C02F103:28
(86) International application number:
PCT/SE0002/386
(87) International publication number:
WO 0104/6072 (28.06.2001 Gazette 2001/26)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 20.12.1999 EP 99850204
21.12.1999 US 172893 P
24.08.2000 SE 0002986

(71) Applicants:
  • Akzo Nobel N.V.
    6800 SB Arnhem (NL)

    AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT TR 
  • Eka Chemicals AB
    445 80 Bohus (SE)

    SE 

(72) Inventors:
  • GREENWOOD, Peter
    S-413 17 Göteborg (SE)
  • LINSTEN, Magnus, Olof
    S-442 35 Kungälv (SE)
  • JOHANSSON-VESTIN, Hans
    S-442 33 Kungälv (SE)

(74) Representative: Jönsson, Christer 
Eka Chemicals AB,Patent Department,Box 11556
100 61 Stockholm
100 61 Stockholm (SE)

   


(54) SILICA-BASED SOLS